I usually study in my room. This room isn't very big. There are/aren't some/any pens on my desk. There aren't/are any/some flowers in this room. In the middle there is/isn't a (colour) carpet. There is also a window in my room. There are some (co kolwiek masz na parapecie w swoim pokoju) on my window sill. I really like to study in my room.
